/**
 * Copyright 2000 self.com.au
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. (http://www.apache.org/licenses/LICENSE-2.0)
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed 
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for 
 * the specific language governing permissions and limitations under the License.
 *
 * <dhamma-message src="Atisha (11th century Tibetan Buddhist master)">
 * 	The greatest achievement is selflessness. The greatest worth is self-mastery.
 * 	The greatest quality is seeking to serve others. The greatest precept is continual awareness.
 * 	The greatest medicine is the emptiness of everything. The greatest action is not conforming with the worlds ways.
 * 	The greatest magic is transmuting the passions. The greatest generosity is non-attachment.
 * 	The greatest goodness is a peaceful mind. The greatest patience is humility.
 * 	The greatest effort is not concerned with results. The greatest meditation is a mind that lets go.
 * 	The greatest wisdom is seeing through appearances. 
 * </dhamma-message>
 *
 * @author Ashin Wimalajeewa
 */
package self.amigo.elem.uml;

import java.util.HashMap;

import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

import self.gee.IGraphicElement;
import self.lang.StringUtils;
import self.xml.DomUtils;

public class AssociationView extends ElementryLinkView {
	
	/**
	 * If the internal state of this class ever changes in such a way that it can't be defaulted,
	 * then the {@link #serialVersionUID} should be incremented to ensure serialized instances cleanly fail.  
	 */
	private static final long serialVersionUID = 1;
	
  final static public String ROLENAME_PROP = "rolename";
  final static public String MULTIPLICITY_PROP = "multiplicity";
  final static public String ROLEINFO_PROP = "roleinfo";
  
  protected IGraphicElement createDelegate() {
    AssociationCore line = new AssociationCore();
    return line;
  }
  
  protected class AssociationCore extends ConfigurableCore {
  	
	/**
	 * If the internal state of this class ever changes in such a way that it can't be defaulted,
	 * then the {@link #serialVersionUID} should be incremented to ensure serialized instances cleanly fail.  
	 */
	private static final long serialVersionUID = 1;
	
    protected void readSideA( Node side, HashMap idObjLookUp ) throws DOMException {  
      a.major = DomUtils.getElementAttribute( side, ROLENAME_PROP );
      a.minor = DomUtils.getElementAttribute( side, MULTIPLICITY_PROP );
      a.head = Integer.parseInt( DomUtils.getElementAttribute(side, ROLEINFO_PROP) );
    }
    
    protected void readSideB( Node side, HashMap idObjLookUp ) throws DOMException {  
      b.major = DomUtils.getElementAttribute( side, ROLENAME_PROP );
      b.minor = DomUtils.getElementAttribute( side, MULTIPLICITY_PROP );
      b.head = Integer.parseInt( DomUtils.getElementAttribute(side, ROLEINFO_PROP) );
    }
    
    protected void writeSideA( Document doc, Element side, HashMap objIdLookup ) {
      DomUtils.setElementAttribute( side, ROLENAME_PROP, StringUtils.toEmptyIfNull(a.major) );
      DomUtils.setElementAttribute( side, MULTIPLICITY_PROP, StringUtils.toEmptyIfNull(a.minor) );
      DomUtils.setElementAttribute( side, ROLEINFO_PROP, "" + a.head );
    }
  
    protected void writeSideB( Document doc, Element side, HashMap objIdLookup ) {
      DomUtils.setElementAttribute( side, ROLENAME_PROP, StringUtils.toEmptyIfNull(b.major) );
      DomUtils.setElementAttribute( side, MULTIPLICITY_PROP, StringUtils.toEmptyIfNull(b.minor) );
      DomUtils.setElementAttribute( side, ROLEINFO_PROP, "" + b.head );
    }
  }
}
